<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户名注册</title>
    <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
    <script>
        $(document).ready(function () {
            $("#button").click(function () {
                var name = $("#yonghu").val();
                var mima = $("#mima").val();
                var youxiang = $("#youxiang").val();
                var tr = "<tr><td>" + '<input type="checkbox">' + "</td><td>" + name + "</td><td>" + mima + "</td><td>" + youxiang + "</td><td>" + '<input type="button" value="删除">' + "</td></tr>";
                $("#table").append(tr);
                $(":button").click(function () {
                    $(this).parent().parent().remove();
                });
            });
        });
    </script>
</head>
<body>
用户:<input id="yonghu" type="text">
密码:<input id="mima" type="password">
邮箱:<input id="youxiang" type="text">
<input type="submit" id="button" value="添加">
<table id="table" border="1ps">
    <tr>
        <td><input type="checkbox"></td>
        <td>用户名</td>
        <td>密码</td>
        <td>邮箱</td>
        <td>操作</td>
    </tr>
</table>
</body>
</html>